Um, I don't think so. The crankcase generally needs to be vented, not
sealed. What is generally referred to as engine vacuum is generated in
the intake manifold and is completely separate. The B has crankcase
ventilation through the side cover, with variations over the years as to
where it winds up (atmosphere, carbon canister, etc). The only worry
about the dipstick seal is if oil is spewing out (indicating clogged
crankcase ventilation elsewhere), or if dirt and crap is getting in
(obviously not good).
Keith Gernert had this to say:
>I think I read somewhere that a good seal around the oil dipstick is
>essential to
>maintain good vacuum in the engine. (I think I got that right--this is
>well outside
>my area of experience or knowledge.) The dipstick on my 79 B is pretty
>sloppy, and
>I'm sure it's not sealing well at all.
>
>Is there any trick I can use to reestablish a good seal around the top of
>the dipstick
>tube, or should I just buy a replacement dipstick?
>
>
>
>--
>Keith Gernert
>79 MGB
>--
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the red one with the silver bootlid.
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